It is up to local government to enact and enforce labour law to protect workers rights. Ultimately it is in the best interest of the billionaires to have a happy, well paid workforce. Who will buy the crap they are selling if the small guys don’t have disposable income?
A lot of these guys(bezos,musk,zuckerberg,gates) started out in their parents garage with one of their college buddies. They catered to our needs and wants and we willingly gave them our money. Instead of buying from Amazon early on I should have been buying Amazon early on.
The beauty of capitalism is that anyone can share in the success of these billionaires if we make the right choices.